This category contains sites concerned with the academic psychological study of religious experience. Sites concerned with research attempting to investigate or explain religious experiences are welcome here.

Religious or mystical experience can be defined in several ways. Paul Tillich defines a religious experience as one that gives ultimate meaning, structure and direction to human experience. Huston Smith defines a religious experience as one that moves the experiencer's feelings, thought, and will, eliciting from the experiencer a centered response from the core of his being.

Please submit research articles, reviews, or critiques of research into prayer.

Prayer is a fundamental activity within many religions. Understandings of prayer vary from reductive psychological explanations in terms of positive thinking and self-talk through to theological descriptions of communication with the Divine.
Of late there has been a surge of interest in scientific experiments attempting to measure the effectiveness of prayer, particularly on health.

This category contains sites concerned with psychoactive drugs in relation to spiritual, mystical, or religious experiences. Sites concerned primarily with drugs but not in relation to religious experience should be submitted to the appropriate related category.

Various psychoactive drugs have been used to induce religious experiences, including LSD and mescaline.